 |
| |||
| 波速 | |||
| velocity of wave: 39 phrases in 9 subjects |
| Bridge construction | 1 |
| Electric machinery | 1 |
| Engineering geology | 4 |
| Explosives and Explosive Ordnance Disposal | 4 |
| Hydroelectric power stations | 3 |
| Rail transport | 2 |
| Space | 1 |
| Technology | 22 |
| Water resources | 1 |
|
| |||
| 波速 | |||
| velocity of wave: 39 phrases in 9 subjects |
| Bridge construction | 1 |
| Electric machinery | 1 |
| Engineering geology | 4 |
| Explosives and Explosive Ordnance Disposal | 4 |
| Hydroelectric power stations | 3 |
| Rail transport | 2 |
| Space | 1 |
| Technology | 22 |
| Water resources | 1 |